Hello,
I have a cisco ACS 4.2 having intermittent issue. user are getting access denied message whenever they wants to login to network devices.
From the acs below arfe the common error messages we have recieved.
1. EAP-TLS or PEAP authentication failed due to unknown CA certificate during SSL handshake
2. Authentication session invalidated
can anyone let me know what could be the issue & how to resolve this?
